CN100365213C - Method for cleaning channel silt using variable tide control gate - Google Patents
Method for cleaning channel silt using variable tide control gate Download PDFInfo
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- CN100365213C CN100365213C CNB2005100131954A CN200510013195A CN100365213C CN 100365213 C CN100365213 C CN 100365213C CN B2005100131954 A CNB2005100131954 A CN B2005100131954A CN 200510013195 A CN200510013195 A CN 200510013195A CN 100365213 C CN100365213 C CN 100365213C
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Abstract
The present invention discloses a method for cleaning the silt in a navigation channel by a variable type tide control brake, which comprises the following steps: an estuary of a riverway or an arbitrary position at the narrow position of a tide region of the estuary is provided with a variable type tide control gate which spans both banks of the riverway; one side of the variable type tide control gate towards a sea is provided with double guide dikes, and the distance between the double guide levees is at least 200 meters and is sufficient to make an ocean steamer run in two ways; the length of the double guide levees at least extends from the variable type tide control gate to the position of 15 meters away from a water-depth isobath, and the height of the double guide levees is level to the sea level during flood tide; during the falling tide of sea water, a door of the variable type tide control gate in the connecting position with the double guide levees is opened, other doors are closed, and powerful water flow with mud flows out of a sea from the inner parts of the double guide levees; during the flood tide of the sea water, the door of the variable type tide control gate in the connecting position with the double guide levees is closed, and other doors are opened. The present invention can concentrate the power of the water flow of rivers and attain the effect of sand scouring by water-flow contraction for cleaning the navigation channel.
Description
Technical field
The present invention relates to river mud and administer the field, particularly relate to a kind of method of utilizing the gate cleaning channel silt.
Background technology
Many great rivers all bring very a large amount of silt every year from the upstream, these silts have arrived the river mouth, because river width increases, the flow velocity in river declines to a great extent, simultaneously, reversing current appears under the influence of sea trend, silt will halt, and the place precipitates in the river mouth, forms one section shallow water area gradually, these shallow water areas are called as entrance bar.Entrance bar becomes the obstacle that ship enters interior river course.
With the PORT OF SHANGHAI mouth is example, building the port initial stage, because the tonnage of dealing trade ship is less, the entrance bar at estuary area place still can not cause and hinder the boat phenomenon, but increase along with the tonnage of ocean liner, and the river bed that entrance bar causes is apart from the only about 6-7 rice of horizontal plane, and ten thousand tons of wheels can only just can take advantage of tide to enter a port at the incoming tide.
The tonnage of modern ocean liner strengthens gradually, and the depth of water minimum in harbour and navigation channel also will reach 15 meters, could satisfy the drinking water requirement of ocean liner in modern age.In order to increase the degree of depth in navigation channel, national governments all will spend great amount of manpower and material resources and financial resources dredging channel every year.
Variable tide control gate Programmable Tidal Current Control Gate is called for short PTCCG, in Chinese patent application number is 03130361.7, denomination of invention is: " method of a kind of flood control and flood discharge " discloses and utilized PTCCG to control flood and the method for flood discharge.
Summary of the invention
The purpose of this invention is to provide a kind of method of utilizing the variable tide control gate cleaning channel silt.
Technical scheme of the present invention is summarized as follows:
A kind of method of utilizing the variable tide control gate cleaning channel silt is characterized in that comprising the steps:
(1) in the river mouth, river course or in the optional position at narrow place, river mouth trend district variable tide control gate is set, described variable tide control gate is across two sides, described river course;
(2) be provided with double-leading-dike at described variable tide control gate to an extra large side, distance between the described double-leading-dike is at least 200 meters, foot Enough allows the ocean-going ship two way, the length of described double-leading-dike is to extend to water depth contour-15 meter from variable tide control gate at least, the height of described double-leading-dike is being for to flush with the sea level at the incoming tide, also can be higher than the sea level or a little less than the sea level;
(3) at ebb tide at seawater, the gate of the variable tide control gate of unlatching and double-leading-dike junction, with other closing gates, strong current is carried mud secretly and flow out the sea in double-leading-dike; When high tide, close the gate with the variable tide control gate of double-leading-dike junction, other gates are opened.
Advantage of the present invention is:
Utilize the present invention the strength of the current in river can be concentrated, play the effect in clearing sands with converging flow cleaning navigation channel.
Description of drawings
Fig. 1 is that variable tide control gate and double-leading-dike are built schematic diagram.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
In the river mouth, river course or in the optional position at narrow place, river mouth trend district variable tide control gate 1 (PTCCG) is set, PTCCG is across two sides, described river course;
Be connected with double-leading-dike 2 at PTCCG to an extra large side and PTCCG, distance between the double-leading-dike is at least 200 meters, foot Enough allows the ocean-going ship two way, the length of double-leading-dike is to extend to water depth contour-15 meter from variable tide control gate at least, the requirement for height of double-leading-dike is flushing with the sea level at the incoming tide, also can be higher than the sea level or a little less than the sea level;
At seawater at ebb tide, the gate of the PTCCG of unlatching and double-leading-dike junction, with other closing gates, utilize the huge groynes effect of PTCCG, all restrainted in double-leading-dike the current in the river course constantly mobile by force, strong current is carried silt secretly and flow out the sea easily in double-leading-dike, plays the effect of clearing sands with converging flow; When high tide, close the gate with the variable tide control gate of double-leading-dike junction, other gates are opened, then the current in the double-leading-dike will pause, can adverse current, its objective is the silt that is brought to the double-leading-dike downstream, can not forced back towards the upstream again because of flood tide.
After building up, variable tide control gate and double-leading-dike come into operation the initial stage, we can adopt some conventional measures that the earth in the double-leading-dike is dug pine, to increase the sediment carrying capacity of current, speed the speed of clearing sands with converging flow, boat is dug and is deep to 15 meters in finishing double-leading-dike, stops to dig pine.
Claims (1)
1. a method of utilizing the variable tide control gate cleaning channel silt is characterized in that comprising the steps:
(1) in the river mouth, river course or in the optional position at narrow place, river mouth trend district variable tide control gate is set, described variable tide control gate is across two sides, described river course;
(2) be provided with double-leading-dike at described variable tide control gate to an extra large side, distance between the described double-leading-dike is at least 200 meters, enough allow the ocean-going ship two way, the length of described double-leading-dike is to extend to water depth contour-15 meter from described variable tide control gate at least, and the height of described double-leading-dike is for to flush with the sea level at the incoming tide;
(3) at ebb tide at seawater, the gate of the variable tide control gate of unlatching and double-leading-dike junction, with other closing gates, strong current is carried mud secretly and flow out the sea in double-leading-dike; When high tide, close the gate with the variable tide control gate of double-leading-dike junction, other gates are opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100131954A CN100365213C (en) | 2005-02-18 | 2005-02-18 | Method for cleaning channel silt using variable tide control gate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100131954A CN100365213C (en) | 2005-02-18 | 2005-02-18 | Method for cleaning channel silt using variable tide control gate |
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| Publication Number | Publication Date |
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| CN1648347A CN1648347A (en) | 2005-08-03 |
| CN100365213C true CN100365213C (en) | 2008-01-30 |
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| CNB2005100131954A Active CN100365213C (en) | 2005-02-18 | 2005-02-18 | Method for cleaning channel silt using variable tide control gate |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003969A (en) * | 2006-09-08 | 2007-07-25 | 林敬成 | Method for harnessing pollution by supplying water to rivers in city |
| CN101424078B (en) * | 2007-05-16 | 2011-07-20 | 马兴华 | Channel shaped deep water tidal channel formed by means of 'bidirectional contraction effect' |
| CN105019396A (en) * | 2014-04-23 | 2015-11-04 | 栾加友 | Novel governance method for blocking sands with grids for seaward channel |
| CN108729407A (en) * | 2017-04-17 | 2018-11-02 | 吴彦民 | Clear husky device is arrheaed in river double flute hardening riverbed exchange |
| CN107992640B (en) * | 2017-09-30 | 2020-12-08 | 上海河口海岸科学研究中心 | Method for determining minimum along-journey monthly dredging amount of deepwater channel at sea entrance |
| CN111576343A (en) * | 2018-06-06 | 2020-08-25 | 黄斌夫 | Sea-filling flood control method |
| CN109267536A (en) * | 2018-11-16 | 2019-01-25 | 彭国洪 | A kind of Waterway Regulation of library tail falling zone |
| CN109356097B (en) * | 2018-11-29 | 2023-09-19 | 中国电建集团成都勘测设计研究院有限公司 | A drainage tunnel import structure for ditch water treatment |
| CN112627100A (en) * | 2020-12-23 | 2021-04-09 | 珠江水利委员会珠江水利科学研究院 | Sluice flow guiding and silt flushing structure and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068615A (en) * | 1992-03-29 | 1993-02-03 | 胡小华 | Unidirectional tidewater dashes the method for row's pollution of river |
| US20030132170A1 (en) * | 2002-01-16 | 2003-07-17 | Wu-Hsiung Wu | River pollution management method |
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2005
- 2005-02-18 CN CNB2005100131954A patent/CN100365213C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068615A (en) * | 1992-03-29 | 1993-02-03 | 胡小华 | Unidirectional tidewater dashes the method for row's pollution of river |
| US20030132170A1 (en) * | 2002-01-16 | 2003-07-17 | Wu-Hsiung Wu | River pollution management method |
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| CN1648347A (en) | 2005-08-03 |
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